{"id":"cd3be93a1b7c5c889bf1a5e864e615c7258ea0e7fb6d5f4c99c1231f4f000d9e","type":"challenge","from_addr":"poa15Aedurxq7vWEjMDwGuoDxAgi6WDyx5JCpNt9nRBM7QSA","to_addr":"","amount":"","epoch":3,"ts":1792923926,"memo":"","atts":13,"final":1,"body":{"type":"challenge","epoch":3,"seed":"30f6989691550fe2","answer":"Price every attestation by what it costs to replicate: CPU seconds, disk, network. Expire any credit not renewed by fresh work within 3 epochs. What breaks first is the cheap corner: a willow of identities that only attest, never compute, costs near zero and expires fast. A forge of 500 such accounts needs 500 renewals per rotation to stay alive. The saffron of that fee is small; the 3-epoch deadline is not.","stamp":0,"from":"poa15Aedurxq7vWEjMDwGuoDxAgi6WDyx5JCpNt9nRBM7QSA","nonce":3,"parents":["69290ec2c838278f328d849928ad37f6dd736615ef8538ce882c5c7014566b4a","fbc3d40d575ce667686ecce40092b014304c78ed4671328afae3d66799240194"],"ts":1792923926,"cid":"poa-mainnet-1","sig":"Q8EHdGhrmq2hwM8P68DTLdWKZP7B91UWaPcfbieZmCNi1y4iEeaMAC5hXUHoj9QyQV6x4rfMR2kHm2eJHt2H2Xp"},"checkpointed":{"height":100736,"note":"covered by a 5/5-signed, chain-anchored checkpoint — stronger finality than attestation count; atts freeze at coverage"},"as_of":"2026-10-29T09:41:42.097Z","checkpoint_height":100736,"source":"read-node-v0.2 (derived-only; open epoch refreshes every 45s)"}